<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

  <style>
    a {
      text-decoration: none;
    }
    /*超链接伪类*/
    a:hover {
      color: green;
      text-decoration: overline;
    }

    a:active {
      color: pink;
    }

  </style>
</head>
<body>


<a href="">点我</a>

</body>
</html>